treewide: Rename Sabrina to Mendocino

'Mendocino' was an embargoed name and could previously not be used
in references to Skyrim.  coreboot has references to sabrina both
in directory structure and in files. This will make life difficult
for people looking for Mendocino support in the long term. The code
name should be replaced with "mendocino".

BUG=b:239072117
TEST=Builds

Cq-Depend: chromium:3764023
Cq-Depend: chromium:3763392
Cq-Depend: chrome-internal:4876777

Signed-off-by: Jon Murphy <jpmurphy@google.com>
Change-Id: I2d0f76fde07a209a79f7e1596cc8064e53f06ada
Reviewed-on: https://review.coreboot.org/c/coreboot/+/65861
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin Roth <martin.roth@amd.corp-partner.google.com>

6 files changed, 633 insertions, 0 deletions

diff --git a/src/soc/amd/mendocino/acpi/globalnvs.asl b/src/soc/amd/mendocino/acpi/globalnvs.asl
new file mode 100644
index 0000000000..4637916192
--- /dev/null
+++ b/src/soc/amd/mendocino/acpi/globalnvs.asl
@@ -0,0 +1,22 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+
+/* TODO: Check if this is still correct */
+
+/*
+ * NOTE: The layout of the GNVS structure below must match the layout in
+ * soc/amd/mendocino/include/soc/nvs.h !!!
+ */
+
+Field (GNVS, ByteAcc, NoLock, Preserve)
+{
+	/* Miscellaneous */
+	,	8,	// 0x00 - Processor Count
+	LIDS,	8,	// 0x01 - LID State
+	,	8,	// 0x02 - AC Power State
+	CBMC,	32,	// 0x03 - 0x06 - coreboot Memory Console
+	PM1I,	64,	// 0x07 - 0x0e - System Wake Source - PM1 Index
+	GPEI,	64,	// 0x0f - 0x16 - GPE Wake Source
+	TMPS,	8,	// 0x17 - Temperature Sensor ID
+	TCRT,	8,	// 0x18 - Critical Threshold
+	TPSV,	8,	// 0x19 - Passive Threshold
+}
diff --git a/src/soc/amd/mendocino/acpi/mmio.asl b/src/soc/amd/mendocino/acpi/mmio.asl
new file mode 100644
index 0000000000..48ae1d2773
--- /dev/null
+++ b/src/soc/amd/mendocino/acpi/mmio.asl
@@ -0,0 +1,383 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+/* TODO: Check if this is still correct */
+
+#include <soc/amd/common/acpi/aoac.asl>
+#include <soc/aoac_defs.h>
+#include <soc/gpio.h>
+#include <soc/iomap.h>
+#include <amdblocks/acpimmio_map.h>
+
+Device (AAHB)
+{
+	Name (_HID, "AAHB0000")
+	Name (_UID, 0x0)
+	Name (_CRS, ResourceTemplate()
+	{
+		Memory32Fixed (ReadWrite, ALINK_AHB_ADDRESS, 0x2000)
+	})
+
+	Method (_STA, 0x0, NotSerialized)
+	{
+		Return (0x0F)
+	}
+}
+
+Device (GPIO)
+{
+	Name (_HID, GPIO_DEVICE_NAME)
+	Name (_CID, GPIO_DEVICE_NAME)
+	Name (_UID, 0)
+	Name (_DDN, GPIO_DEVICE_DESC)
+
+	Method (_CRS, 0) {
+		Local0 = ResourceTemplate() {
+			Interrupt (
+				ResourceConsumer,
+				Level,
+				ActiveLow,
+				Shared, , , IRQR)
+			{ 0 }
+			Memory32Fixed (ReadWrite, ACPIMMIO_GPIO0_BASE, 0x400)
+		}
+		CreateDWordField (Local0, IRQR._INT, IRQN)
+		If (PICM) {
+			IRQN = IGPI
+		} Else {
+			IRQN = PGPI
+		}
+		If (IRQN == 0x1f) {
+			Return (ResourceTemplate() {
+				Memory32Fixed (ReadWrite, ACPIMMIO_GPIO0_BASE, 0x400)
+			})
+		} Else {
+			Return (Local0)
+		}
+	}
+
+	Method (_STA, 0x0, NotSerialized)
+	{
+		Return (0x0F)
+	}
+}
+
+Device (FUR0)
+{
+	Name (_HID, "AMDI0020")
+	Name (_UID, 0x0)
+	Method (_CRS, 0) {
+		Local0 = ResourceTemplate() {
+			Interrupt (
+				ResourceConsumer,
+				Edge,
+				ActiveHigh,
+				Exclusive, , , IRQR)
+			{ 0 }
+			Memory32Fixed (ReadWrite, APU_UART0_BASE, 0x1000)
+		}
+		CreateDWordField (Local0, IRQR._INT, IRQN)
+		If (PICM) {
+			IRQN = IUA0
+		} Else {
+			IRQN = PUA0
+		}
+		If (IRQN == 0x1f) {
+			Return (ResourceTemplate() {
+				Memory32Fixed (ReadWrite, APU_UART0_BASE, 0x1000)
+			})
+		} Else {
+			Return (Local0)
+		}
+	}
+
+	AOAC_DEVICE(FCH_AOAC_DEV_UART0, 0)
+}
+
+Device (FUR1) {
+	Name (_HID, "AMDI0020")
+	Name (_UID, 0x1)
+	Method (_CRS, 0) {
+		Local0 = ResourceTemplate() {
+			Interrupt (
+				ResourceConsumer,
+				Edge,
+				ActiveHigh,
+				Exclusive, , , IRQR)
+			{ 0 }
+			Memory32Fixed (ReadWrite, APU_UART1_BASE, 0x1000)
+		}
+		CreateDWordField (Local0, IRQR._INT, IRQN)
+		If (PICM) {
+			IRQN = IUA1
+		} Else {
+			IRQN = PUA1
+		}
+		If (IRQN == 0x1f) {
+			Return (ResourceTemplate() {
+				Memory32Fixed (ReadWrite, APU_UART1_BASE, 0x1000)
+			})
+		} Else {
+			Return (Local0)
+		}
+	}
+
+	AOAC_DEVICE(FCH_AOAC_DEV_UART1, 0)
+}
+
+Device (FUR2) {
+	Name (_HID, "AMDI0020")
+	Name (_UID, 0x2)
+	Method (_CRS, 0) {
+		Local0 = ResourceTemplate() {
+			Interrupt (
+				ResourceConsumer,
+				Edge,
+				ActiveHigh,
+				Exclusive, , , IRQR)
+			{ 0 }
+			Memory32Fixed (ReadWrite, APU_UART2_BASE, 0x1000)
+		}
+		CreateDWordField (Local0, IRQR._INT, IRQN)
+		If (PICM) {
+			IRQN = IUA2
+		} Else {
+			IRQN = PUA2
+		}
+		If (IRQN == 0x1f) {
+			Return (ResourceTemplate() {
+				Memory32Fixed (ReadWrite, APU_UART2_BASE, 0x1000)
+			})
+		} Else {
+			Return (Local0)
+		}
+	}
+
+	AOAC_DEVICE(FCH_AOAC_DEV_UART2, 0)
+}
+
+Device (FUR3) {
+	Name (_HID, "AMDI0020")
+	Name (_UID, 0x3)
+	Method (_CRS, 0) {
+		Local0 = ResourceTemplate() {
+			Interrupt (
+				ResourceConsumer,
+				Edge,
+				ActiveHigh,
+				Exclusive, , , IRQR)
+			{ 0 }
+			Memory32Fixed (ReadWrite, APU_UART3_BASE, 0x1000)
+		}
+		CreateDWordField (Local0, IRQR._INT, IRQN)
+		If (PICM) {
+			IRQN = IUA3
+		} Else {
+			IRQN = PUA3
+		}
+		If (IRQN == 0x1f) {
+			Return (ResourceTemplate() {
+				Memory32Fixed (ReadWrite, APU_UART3_BASE, 0x1000)
+			})
+		} Else {
+			Return (Local0)
+		}
+	}
+
+	AOAC_DEVICE(FCH_AOAC_DEV_UART3, 0)
+}
+
+Device (FUR4) {
+	Name (_HID, "AMDI0020")
+	Name (_UID, 0x4)
+	Method (_CRS, 0) {
+		Local0 = ResourceTemplate() {
+			Interrupt (
+				ResourceConsumer,
+				Edge,
+				ActiveHigh,
+				Exclusive, , , IRQR)
+			{ 0 }
+			Memory32Fixed (ReadWrite, APU_UART4_BASE, 0x1000)
+		}
+		CreateDWordField (Local0, IRQR._INT, IRQN)
+		If (PICM) {
+			IRQN = IUA4
+		} Else {
+			IRQN = PUA4
+		}
+		If (IRQN == 0x1f) {
+			Return (ResourceTemplate() {
+				Memory32Fixed (ReadWrite, APU_UART4_BASE, 0x1000)
+			})
+		} Else {
+			Return (Local0)
+		}
+	}
+
+	AOAC_DEVICE(FCH_AOAC_DEV_UART4, 0)
+}
+
+Device (I2C0) {
+	Name (_HID, "AMDI0010")
+	Name (_UID, 0x0)
+	Method (_CRS, 0) {
+		Local0 = ResourceTemplate() {
+			Interrupt (
+				ResourceConsumer,
+				Edge,
+				ActiveHigh,
+				Exclusive, , , IRQR)
+			{ 0 }
+			Memory32Fixed (ReadWrite, APU_I2C0_BASE, 0x1000)
+		}
+		CreateDWordField (Local0, IRQR._INT, IRQN)
+		If (PICM) {
+			IRQN = II20
+		} Else {
+			IRQN = PI20
+		}
+		If (IRQN == 0x1f) {
+			Return (ResourceTemplate() {
+				Memory32Fixed (ReadWrite, APU_I2C0_BASE, 0x1000)
+			})
+		} Else {
+			Return (Local0)
+		}
+	}
+
+	Method (_STA, 0x0, NotSerialized)
+	{
+		Return (0x0F)
+	}
+
+	AOAC_DEVICE(FCH_AOAC_DEV_I2C0, 0)
+}
+
+Device (I2C1) {
+	Name (_HID, "AMDI0010")
+	Name (_UID, 0x1)
+	Method (_CRS, 0) {
+		Local0 = ResourceTemplate() {
+			Interrupt (
+				ResourceConsumer,
+				Edge,
+				ActiveHigh,
+				Exclusive, , , IRQR)
+			{ 0 }
+			Memory32Fixed (ReadWrite, APU_I2C1_BASE, 0x1000)
+		}
+		CreateDWordField (Local0, IRQR._INT, IRQN)
+		If (PICM) {
+			IRQN = II21
+		} Else {
+			IRQN = PI21
+		}
+		If (IRQN == 0x1f) {
+			Return (ResourceTemplate() {
+				Memory32Fixed (ReadWrite, APU_I2C1_BASE, 0x1000)
+			})
+		} Else {
+			Return (Local0)
+		}
+	}
+
+	Method (_STA, 0x0, NotSerialized)
+	{
+		Return (0x0F)
+	}
+
+	AOAC_DEVICE(FCH_AOAC_DEV_I2C1, 0)
+}
+
+Device (I2C2) {
+	Name (_HID, "AMDI0010")
+	Name (_UID, 0x2)
+	Method (_CRS, 0) {
+		Local0 = ResourceTemplate() {
+			Interrupt (
+				ResourceConsumer,
+				Edge,
+				ActiveHigh,
+				Exclusive, , , IRQR)
+			{ 0 }
+			Memory32Fixed (ReadWrite, APU_I2C2_BASE, 0x1000)
+		}
+		CreateDWordField (Local0, IRQR._INT, IRQN)
+		If (PICM) {
+			IRQN = II22
+		} Else {
+			IRQN = PI22
+		}
+		If (IRQN == 0x1f) {
+			Return (ResourceTemplate() {
+				Memory32Fixed (ReadWrite, APU_I2C2_BASE, 0x1000)
+			})
+		} Else {
+			Return (Local0)
+		}
+	}
+
+	Method (_STA, 0x0, NotSerialized)
+	{
+		Return (0x0F)
+	}
+
+	AOAC_DEVICE(FCH_AOAC_DEV_I2C2, 0)
+}
+
+Device (I2C3)
+{
+	Name (_HID, "AMDI0010")
+	Name (_UID, 0x3)
+	Method (_CRS, 0) {
+		Local0 = ResourceTemplate() {
+			Interrupt (
+				ResourceConsumer,
+				Edge,
+				ActiveHigh,
+				Exclusive, , , IRQR)
+			{ 0 }
+			Memory32Fixed (ReadWrite, APU_I2C3_BASE, 0x1000)
+		}
+		CreateDWordField (Local0, IRQR._INT, IRQN)
+		If (PICM) {
+			IRQN = II23
+		} Else {
+			IRQN = PI23
+		}
+		If (IRQN == 0x1f) {
+			Return (ResourceTemplate() {
+				Memory32Fixed (ReadWrite, APU_I2C3_BASE, 0x1000)
+			})
+		} Else {
+			Return (Local0)
+		}
+	}
+	Method (_STA, 0x0, NotSerialized)
+	{
+		Return (0x0F)
+	}
+
+	AOAC_DEVICE(FCH_AOAC_DEV_I2C3, 0)
+}
+
+Device (MISC)
+{
+	Name (_HID, "AMD0040")
+	Name (_UID, 0x3)
+	Name (_CRS, ResourceTemplate() {
+		Memory32Fixed (ReadWrite, ACPIMMIO_MISC_BASE, 0x100)
+	})
+	Name (_DSD, Package ()
+	{
+		ToUUID ("daffd814-6eba-4d8c-8a91-bc9bbf4aa301"),
+		Package ()
+		{
+			Package () { "is-rv", 1 },
+		},
+	})
+	Method (_STA, 0x0, NotSerialized)
+	{
+		Return (0x0F)
+	}
+}
diff --git a/src/soc/amd/mendocino/acpi/pci0.asl b/src/soc/amd/mendocino/acpi/pci0.asl
new file mode 100644
index 0000000000..e729ba38ff
--- /dev/null
+++ b/src/soc/amd/mendocino/acpi/pci0.asl
@@ -0,0 +1,86 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+/* TODO: Check if this is still correct */
+
+Device(PCI0) {
+	Name(_HID, EISAID("PNP0A08"))	/* PCI Express Root Bridge */
+	Name(_CID, EISAID("PNP0A03"))	/* PCI Root Bridge */
+	External(TOM1, IntObj)		/* Generated by root_complex.c */
+
+	Method(_BBN, 0, NotSerialized) {
+		Return(Zero) /* Bus number = 0 */
+	}
+
+	Method(_STA, 0, NotSerialized) {
+		Return(0x0B)	/* Status is visible */
+	}
+
+	/* Operating System Capabilities Method */
+	Method(_OSC, 4) {
+		CreateDWordField(Arg3, 0, CDW1) /* Capabilities dword 1 */
+
+		/* Check for proper PCI/PCIe UUID */
+		If (Arg0 == ToUUID("33DB4D5B-1FF7-401C-9657-7441C03DD766")) {
+			/* Let OS control everything */
+			Return (Arg3)
+		} Else {
+			CDW1 |= 4	/* Unrecognized UUID */
+			Return (Arg3)
+		}
+	}
+	Name(CRES, ResourceTemplate() {
+		WordBusNumber (ResourceProducer, MinFixed, MaxFixed, PosDecode,
+			0x0000,		/* address granularity */
+			0x0000,		/* range minimum */
+			0x00ff,		/* range maximum */
+			0x0000,		/* translation */
+			0x0100,		/* length */
+			,, PSB0)	/* ResourceSourceIndex, ResourceSource, DescriptorName */
+
+		IO(Decode16, 0x0cf8, 0x0cf8, 1,	8)
+
+		WORDIO(ResourceProducer, MinFixed, MaxFixed, PosDecode, EntireRange,
+			0x0000,		/* address granularity */
+			0x0000,		/* range minimum */
+			0x0cf7,		/* range maximum */
+			0x0000,		/* translation */
+			0x0cf8		/* length */
+		)
+
+		WORDIO(ResourceProducer, MinFixed, MaxFixed, PosDecode, EntireRange,
+			0x0000,		/* address granularity */
+			0x0d00,		/* range minimum */
+			0xffff,		/* range maximum */
+			0x0000,		/* translation */
+			0xf300		/* length */
+		)
+
+		Memory32Fixed(READONLY, 0x000a0000, 0x00020000, VGAM)	/* VGA memory space */
+		Memory32Fixed(READONLY, 0x000c0000, 0x00020000, EMM1)	/* Assume C0000-E0000 empty */
+
+		/* memory space for PCI BARs below 4GB */
+		Memory32Fixed(ReadOnly, 0x00000000, 0x00000000, MMIO)
+	})
+
+	Method(_CRS, 0) {
+		CreateDWordField(CRES, ^MMIO._BAS, MM1B)
+		CreateDWordField(CRES, ^MMIO._LEN, MM1L)
+
+		/* Declare memory between TOM1 and MMCONF as available for PCI MMIO. */
+		MM1B = TOM1
+		Local0 = CONFIG_ECAM_MMCONF_BASE_ADDRESS
+		Local0 -= TOM1
+		MM1L = Local0
+
+		CreateWordField(CRES, ^PSB0._MAX, BMAX)
+		CreateWordField(CRES, ^PSB0._LEN, BLEN)
+		BMAX = CONFIG_ECAM_MMCONF_BUS_NUMBER - 1
+		BLEN = CONFIG_ECAM_MMCONF_BUS_NUMBER
+
+		Return(CRES) /* note to change the Name buffer */
+	} /* end of Method(_SB.PCI0._CRS) */
+
+	/* 0:14.3 - LPC */
+	#include <soc/amd/common/acpi/lpc.asl>
+
+} /* End PCI0 scope */
diff --git a/src/soc/amd/mendocino/acpi/pci_int_defs.asl b/src/soc/amd/mendocino/acpi/pci_int_defs.asl
new file mode 100644
index 0000000000..fa5c88b0d6
--- /dev/null
+++ b/src/soc/amd/mendocino/acpi/pci_int_defs.asl
@@ -0,0 +1,71 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+/* TODO: Check if this is still correct */
+
+/* PCI IRQ mapping registers, C00h-C01h. */
+OperationRegion(PRQM, SystemIO, 0x00000c00, 0x00000002)
+	Field(PRQM, ByteAcc, NoLock, Preserve) {
+	PRQI, 0x00000008,
+	PRQD, 0x00000008,  /* Offset: 1h */
+}
+/*
+ * All PIC indexes are prefixed with P.
+ * All IO-APIC indexes are prefixed with I.
+ */
+IndexField(PRQI, PRQD, ByteAcc, NoLock, Preserve) {
+	PIRA, 0x00000008,	/* Index 0: INTA */
+	PIRB, 0x00000008,	/* Index 1: INTB */
+	PIRC, 0x00000008,	/* Index 2: INTC */
+	PIRD, 0x00000008,	/* Index 3: INTD */
+	PIRE, 0x00000008,	/* Index 4: INTE */
+	PIRF, 0x00000008,	/* Index 5: INTF */
+	PIRG, 0x00000008,	/* Index 6: INTG */
+	PIRH, 0x00000008,	/* Index 7: INTH */
+
+	Offset (0x43),
+	PMMC, 0x00000008,	/* Index 0x43: eMMC */
+
+	Offset (0x62),
+	PGPI, 0x00000008,	/* Index 0x62: GPIO */
+
+	Offset (0x70),
+	PI20, 0x00000008,	/* Index 0x70: I2C0 */
+	PI21, 0x00000008,	/* Index 0x71: I2C1 */
+	PI22, 0x00000008,	/* Index 0x72: I2C2 */
+	PI23, 0x00000008,	/* Index 0x73: I2C3 */
+	PUA0, 0x00000008,	/* Index 0x74: UART0 */
+	PUA1, 0x00000008,	/* Index 0x75: UART1 */
+	PI24, 0x00000008,	/* Index 0x76: I2C4 */
+	PUA4, 0x00000008,	/* Index 0x77: UART4 */
+	PUA2, 0x00000008,	/* Index 0x78: UART2 */
+	PUA3, 0x00000008,	/* Index 0x79: UART3 */
+
+	/* IO-APIC IRQs */
+	Offset (0x80),
+	IORA, 0x00000008,	/* Index 0x80: INTA */
+	IORB, 0x00000008,	/* Index 0x81: INTB */
+	IORC, 0x00000008,	/* Index 0x82: INTC */
+	IORD, 0x00000008,	/* Index 0x83: INTD */
+	IORE, 0x00000008,	/* Index 0x84: INTE */
+	IORF, 0x00000008,	/* Index 0x85: INTF */
+	IORG, 0x00000008,	/* Index 0x86: INTG */
+	IORH, 0x00000008,	/* Index 0x87: INTH */
+
+	Offset (0xC3),
+	IMMC, 0x00000008,	/* Index 0xC3: eMMC */
+
+	Offset (0xE2),
+	IGPI, 0x00000008,	/* Index 0xE2: GPIO */
+
+	Offset (0xF0),
+	II20, 0x00000008,	/* Index 0xF0: I2C0 */
+	II21, 0x00000008,	/* Index 0xF1: I2C1 */
+	II22, 0x00000008,	/* Index 0xF2: I2C2 */
+	II23, 0x00000008,	/* Index 0xF3: I2C3 */
+	IUA0, 0x00000008,	/* Index 0xF4: UART0 */
+	IUA1, 0x00000008,	/* Index 0xF5: UART1 */
+	II24, 0x00000008,	/* Index 0xF6: I2C4 */
+	IUA4, 0x00000008,	/* Index 0xF7: UART4 */
+	IUA2, 0x00000008,	/* Index 0xF8: UART2 */
+	IUA3, 0x00000008,	/* Index 0xF9: UART3 */
+}
diff --git a/src/soc/amd/mendocino/acpi/rtc_workaround.asl b/src/soc/amd/mendocino/acpi/rtc_workaround.asl
new file mode 100644
index 0000000000..8bbca4e3f1
--- /dev/null
+++ b/src/soc/amd/mendocino/acpi/rtc_workaround.asl
@@ -0,0 +1,28 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+/* TODO: Check if this is still correct */
+
+/*
+ * Workaround for RTC on Cezanne.
+ * See https://source.chromium.org/chromiumos/chromiumos/codesearch/+/main:src/third_party/kernel/v5.10/drivers/platform/x86/amd-pmc.c;l=416;drc=54a96af06ae6851e4a02e8dd700de0d579ef7839
+ */
+
+Scope (\_SB.PEP) {
+	Name (_PRW, Package () {
+		Package() {\_SB.GPIO, 0},
+		0x03
+	})
+}
+
+Scope (\_SB.GPIO) {
+	Name (_AEI, ResourceTemplate () {
+		GpioInt(Edge, ActiveHigh, ExclusiveAndWake, PullNone, 0x0000, "\\_SB.GPIO",,,,)
+		{
+			44 /* int_shdwsysalarmfire */
+		}
+	})
+
+	Method (_E2C, 0, Serialized) {
+		Notify (\_SB_.PEP, 0x02)
+	}
+}
diff --git a/src/soc/amd/mendocino/acpi/soc.asl b/src/soc/amd/mendocino/acpi/soc.asl
new file mode 100644
index 0000000000..f5a41a17cf
--- /dev/null
+++ b/src/soc/amd/mendocino/acpi/soc.asl
@@ -0,0 +1,43 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+/* TODO: Check if this is still correct */
+
+#include "globalnvs.asl"
+
+Scope(\_SB) {
+	/* global utility methods expected within the \_SB scope */
+	#include <arch/x86/acpi/globutil.asl>
+
+	#include <soc/amd/common/acpi/gpio_bank_lib.asl>
+
+	#include <soc/amd/common/acpi/osc.asl>
+
+	#include "pci_int_defs.asl"
+
+	#include <soc/amd/common/acpi/pci_int.asl>
+
+	#include "mmio.asl"
+
+	#include "pci0.asl"
+} /* End \_SB scope */
+
+#include <soc/amd/common/acpi/alib.asl>
+
+#include <soc/amd/common/acpi/platform.asl>
+
+#include <soc/amd/common/acpi/sleepstates.asl>
+
+#include <soc/amd/common/acpi/upep.asl>
+
+#include "rtc_workaround.asl"
+
+/*
+ * Platform Wake Notify
+ *
+ * This is called by soc/amd/common/acpi/platform.asl.
+ */
+Method (PNOT)
+{
+	/* Report AC/DC state to ALIB using WAL1() */
+	\WAL1 ()
+}